Nanotags for authentication
    91.
    发明授权

    公开(公告)号:US10679110B2

    公开(公告)日:2020-06-09

    申请号:US16371243

    申请日:2019-04-01

    Abstract: A method for creating a nanostructure surface, comprises creating a nanostructure master having a surface being the negative of a shape that, when illuminated with a predefined illumination, provides a unique optical pattern; and creating nanostructure molds from the nanostructure master, wherein each nanostructure mold has a negative of the master surface which, when illuminated with the predefined illumination, provides the unique optical pattern, which may be a hologram. A nanotag may incorporate an image for identification and a unique pattern that can be identified for authentication.

    Method and system for processing an image

    公开(公告)号:US10565716B2

    公开(公告)日:2020-02-18

    申请号:US15899394

    申请日:2018-02-20

    Abstract: A method of processing an image is disclosed. The method comprises decomposing the image into a plurality of channels, each being characterized by a different depth-of-field, and accessing a computer readable medium storing an in-focus dictionary defined over a plurality of dictionary atoms, and an out-of-focus dictionary defined over a plurality of sets of dictionary atoms, each set corresponding to a different out-of-focus condition. The method also comprises computing one or more sparse representations of the decomposed image over the dictionaries.

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